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Duracell Powermat GoPower Longhaul backup battery, power bank, for iPhone 5S/5C/5, Samsung Galaxy S4, other smartphones and tablets

4.3 out of 5 stars 78 customer reviews

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  • Maximum Multi Day Power: Up to 4 extra charges for your phone and can also power your tablet; Whether you are going on away on a business trip or a vacation, we've got you covered; 8800 mAh capacity;
  • No need to wait -with dual USB ports you can charge both your phone and tablet simultaneously; Or up your popularity and share the power with friends and family
  • Quick and convenient; Charge your smartphone, tablet or USB device on the go at a rate comparable to being plugged into an outlet
  • Recharge the Longhaul with the included USB cable or for ultimate recharge wirelessly on any Duracell Powermat wireless charging surface or PMA compatible surface;
  • What's in the box: GoPower Overnighter, USB to micro USB cable, user guide
7 new from $102.59

iPhone 7 Cases, Accessories, and Bluetooth Headsets iPhone 7 Cases, Accessories, and Bluetooth Headsets

Product Features

  • Size (LWH): 2.8 inches, 0.9 inches, 4.28 inches
  • Weight: 8.8 ounces
  See more technical details

Product Description

Don't let your phone or tablet's battery call the shots. Take charge with Duracell Powermat. The GoPower Long Haul is for those who need maximum power to go, on demand with no waiting. It can keep your tablets, smartphones or other USB based devices charged for days it can even charge to devices at once. The GoPower Long Haul is part of the Duracell Powermat Wireless Charging Collection. Its compact design and flexibility make it perfect for travel or busy days on the go. To charge devices such as tablets, simply connect your USB compatible devices to the high output USB ports (up to 2.1A) and press the copper power button to begin charging. The GoPower Long Haul features two ways to recharge. Simply place the GoPower Long Haul on any PowerMat surface to recharge wirelessly. Or charge via the included USB cable to connect the battery to any works with iPhone type plug with a USB port or to your computer. Duracell Powermat products are compatible with the PMA (Power Matters Alliance) standard. PMA is the standard for smart and environmental wireless power backed by AT&T, Starbucks, P&G, Powermat and dozens of global leaders, and deployed at leading venues including in select Delta Air Terminals and Delta Sky Clubs, Westfield Malls, at Madison Square Garden, Barclays Center and in Jay Z's 40/40 Club. Duracell Powermat. TakeCharge. Be Empowered.

Product Information

Product Dimensions 2.8 x 0.9 x 4.3 inches
Item Weight 8.8 ounces
Shipping Weight 11.2 ounces
Item model number PBU8B1
Batteries 1 Lithium ion batteries required. (included)
Customer Reviews
4.3 out of 5 stars 78 customer reviews

4.3 out of 5 stars
Best Sellers Rank #362,752 in Cell Phones & Accessories (See Top 100 in Cell Phones & Accessories)
#182,143 in Cell Phones & Accessories > Cases > Cases

Warranty & Support

Product Warranty: For warranty information about this product, please click here


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Customer Questions & Answers

Customer Reviews

Top Customer Reviews

By Eric K. VINE VOICE on November 1, 2013
Vine Customer Review of Free Product ( What's this? )
This "long haul battery" by Duracell is a very handy device for long trips when you can't find a place to charge your device (iPhone, tablet, etc.). Since it has two ports and holds twice the power as the Duracell Powermat GoPower Overnighter Battery, it's good for two people traveling together. Once charged itself, the battery held four full charges for my iPhone 4S. I can see it coming in handy when traveling, especially by air where there's not always an available power outlet in the airport or an outlet at all on the airplane. It would also come in handy for camping (not that I do) or if you're going out for the day (hiking, shopping, etc.) and wouldn't have access to a power source, should you need one to refuel. It's light and compact enough to carry around. It weighs more than a couple of iPhones, but not uncomfortably heavy.

I gave the device five stars for its usefulness, but I'd rate the instructions (and packaging) two stars. It's very hard to get these batteries out of their very tight packaging! I was afraid I was going to break it. And the instructions are very vague. Sure, I could figure out what to do, but I had questions that weren't answered (and could/should have been either in the instructions or on outside of the box).

1) "Is the battery already charged?"
2) "How do I know if it is?"
3) "How many charges does it hold?"
4) "How do I know when it's fully charged?"
5) "How long does it take to charge my iPhone?"

These are questions I had to figure out myself. To answer them:

1) Yes, the battery is charged, but it only had two charges at the start when I took it out of the package.
Read more ›
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Vine Customer Review of Free Product ( What's this? )
This Duracell Powermat GoPower Longhaul backup battery is a handy backup battery.

This battery has a 8800 mAh charge capacity, which in theory should give me 6x charging of an iPhone 4S (1449 mAh) or iPhone 5 (1440 mAh). In my testing, I am able to charge two iPhones fully, and then charge another iPhone to almost-full. So I am only able to get half as much as what I should get out of this battery. I am still pleased by this portable backup battery, but the performance is a bit lacking.

When charging two devices at once, note that the maximum power output of the battery is 2.1A (not 2.1A per port). If you want to charge both a tablet and a phone at the same time, you may choose how to split the power between the dual ports:
-If you want to split it evenly, connect the phone first, press the power button, and then connect the tablet.
-If you want to provide full power (up to 2.1A) to a tablet, connect it first and press the power button.

There are four LEDs beside the copper power button. A short press will cause the LEDs to illuminate briefly to indicate the power level.

Off to other things about this battery...

What I like:
-Can charge two phones simultaneously (or a phone and tablet... at least on paper); note that charging two devices at the same time will take longer to charge (max output is 2.1A total, not 2.1A per port)
-Larger capacity than many other backup batteries I've used
-Can be charged on a
...Read more ›
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Vine Customer Review of Free Product ( What's this? )
In theory, this is a great contraption. I little black block that I can use to charge my iphone, Kindle, Kindle Fire, etc. pretty much anywhere, as long as I have my USB charging cable with me. Great for trips when one might be out in the middle of nowhere. Emergency backup (not that my life is filled with emergencies, but still...). Some charging at airports when folks have hogged up the outlets. Good deal!

The device DOES work. It is, however, incredibly SLOOOOOWWWWW. My Kindle Fire took from 7am until dinner time to charge. My roughly half-empty iphone 5 took about 4-5 hours.

And the device itself can only be charged via a USB cable. There's not AC adapter. And that took a long time...I actually charged it over a couple of days. I'd guess nearly 10 hours for a charge.

I don't know how long it takes to drain it all the way...but after I charged my Kindle Fire, it took about 5 hours to get it back to full. No idea how drained it was.

So technically, this device does work, and I imagine I'll use it some when travelling. But it is by NO MEANS a miracle worker. Set expectations accordingly, and REALLY think about whether it's worth the $ to you. As you see, I was fortunate enough to receive this from the Vine program in exchange for my thoughts. I would NOT have been happy if I had paid $120 or so for it. It might be worth it for you if you're a road warrior or a camper or something like that. But again, really think about what I've described if it is worth the price.
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